Machine for making links



(No Model.)

J. BRIDGE.

MACHINE FOR MAKING LINKS; No. 264,132. Patented Sept. 12, 1882.

UNITED STATES. PATENT QFFICE.

JOHN BRIDGE, OF DETROIT, MICHIGAN.

MACHINE FOR MAKING LINKS.

SPECIFICATION forming part of Letters Patent No. 264,132, dated September 12, 1882.

- Application filed February 521, 1882. (No model.)

, To all whom it may concern: the die in different degrees of depth-that is Be it known that I, JOHN BRIDGE, of Deto say, the recess f enters toward the center of troit, in the county of Wayne and State of the die the farthest and the recess f the least. 55

Michigan, have invented new and useful Im- In practice the three dies are combined and 5 provements in Machines for Making Itailwayoperate as follows: The dies A are clamped Gar Links; and I do hereby declare that the together and used in a stationary position. following is a full, clear, and exact description Each of the dies B is held or set in the end of thereof, reference being had to the accompathe vibrating levers D, or in any other manner 60 nyin g drawings, which form a part of this which gives them a lateral movement. The 1o specification. die is journaled through the central opening, The nature of this invention relates to cerc, at the end of the reciprocating bar or rod tain new and useful improvements in devices E. I This bar E is shown in the drawings to be for the manufacture of links such as are used, provided with the inclined planes g, which are 65 for instance, for car-coupling purposes or for made to operate the levers D in the inanner of i chain-making; and the invention consists in a pair of jaws, forcing the dies B to close tothe peculiar construction and operation of the gether whenever the bar E moves away from dies in the machine for the purpose, all as more the dies A. fully hereinafter described. The dies are used in the following manner: 70 Figure 1 is a plan view, showing the dies in The bar for forming the link is bent in the position attached to the machine. Fig. 2 is a proper U shape, and then inserted,with its parperspective of one of the set or stationary dies allel sides, into the groovesa of the dies A,with r removed from the machine. Fig. 3 is a perits bent end lying against and around the nose spective of one of the set of side dies, also deb thereof. Then the two dies A are clamped 75 tached. Fig. 4 is a sectional perspective of together, or are clamped upon the bed of the 2 5 the end die detached. Fig. 5 is a face view of machine, by anysuitable device--such as a pair the same. Fig. 6 is a perspective of a link of wedges,for instance,one on each side-holdlapped by the end die.- Fig. 7 is a horizontal ing the link fast and in' proper position for becentral section of the stationary die, illustrating acted upon by the other dies. If the ma- 8o ing the action of the side die. Fig. 8 is a side chine is now set in motion, the levers D will view of the stationary and end dies in the posiforce the dies B to close upon the end of the tion assumed in upsetting the ends of the link. link, shaping it in the desired manner upon In the drawings which accompany this speciits outer sides, while the die 0 is operating ficatiou are shown, attached to a suitable mawith one of the recesses fito f shaping the 85 chine for operatingthem, three sets of differend of the link. Thisjs done first'with the 5 cut dies. The diesAconsist of two like halves, recess f following up with recesses f and f, one of which is shown in perspectivein Fig. if desired. .The difi'erent distancing or depth 2. Each half contains two parallel grooves, a, of the recesses from the center of motion natuand the rounding projection or nose I). The rally will upset the end of the link. Suitable c dies B consist of two like halves, one half mechanism (not shown in the drawings) may 40 thereof being shown in perspective in Fig. 3. be employed to turn the die 0 automatically Its face is shown to be provided with the semia quarter of a revolution at each stroke of the circular-shaped recess 0, and is cut away, as at bar E in order to present a different recess in d, and if the two halves are closed together, said die for action. After one end of the link 93 as in Fig. 7, the recesses 0 form a space of the is finishedand which can be done with the desired shape to form the rounded sides of the same heat used for bending the bar-the link end of the link. In Fig.4 is shown a one-half is taken out of the dies A, and its free ends section of the third die, 0, which is provided are then properly heated, whereupon the link with a central opening. 0, and four. indentais put back into the dies A, the free ends be- 1 tions or recesses, f f f 2 f upon the circular ing this time allowed to protrude through the face of the die, and are for the purpose of shapgrooves a a sufficient length to form around ing the ends of the link. It will be noticed the nose b the other end of the link. The dies in the drawings that these indentations enter A being again properly clamped upon the bed die 0, with its lap of the machine so as to hold the link fast, the )ing recess f, is allowed to act upon the projecting ends of the link. This recess f is differently shaped from the others. 1 In Fig. 5 a face view of it is shown, and its action upon the free ends produces the lap necessary for proper welding, as shown in Fig. 6. After the ends are lapped the link is finished by using the dies B and the die 0, as hereinbet'ore described. In the drawings, the nose I) upon the die A will produce a link, I), shaped in cross-section upon its end; but it is obvious that the proper modification of this nose will allow of producing any desired shape in crosssection of the end.

Vhat I claim as my invention is 1. In a machine for t'ormingthe ends of a link, the dies A, B, and G, constructed and operating substantially as described, in combination with suitable mechanism for operating them, as set forth.

2. As a means of forming the inner bend of a link, the pair of dies A, constructed and operating substantially as set forth, in combination with suitable mechanism for operating them.

3. As a means for forming the sides of the bend, the dies B, constructed and operating substantially as specified, in combination with suitable mechanism for operating them.

4. As a means of forming the outer bend of the end of the link, the die 0, constructed and operating substantially as described, in combination with suitable mechanism for operating it.

5. As a means of forming the lap, the die 0, provided with the lapping recess f, substantially as set forth, in combination with suitable mechanism for operating it.

6. The combination, with the dies A B O,

constructed substantially as described, of the levers I), traveling rod I, and the inclines g g, as set forth.

JOHN BRIDGE. \Vitnesses:

OHAs. J. HUNT, E. SOULLY. 

